<template>
  <el-card shadow="hover">
    <el-form inline :disabled="disabled">
      <el-form-item label="一级分类">
        <el-select placeholder="请选择" v-model="categoryStore.category1Id">
          <el-option
            v-for="c1 in categoryStore.category1List"
            :key="c1.id"
            :label="c1.name"
            :value="c1.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="二级分类">
        <el-select placeholder="请选择" v-model="categoryStore.category2Id">
          <el-option
            v-for="c2 in categoryStore.category2List"
            :key="c2.id"
            :label="c2.name"
            :value="c2.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="三级分类">
        <el-select placeholder="请选择" v-model="categoryStore.category3Id">
          <el-option
            v-for="c3 in categoryStore.category3List"
            :key="c3.id"
            :label="c3.name"
            :value="c3.id"
          />
        </el-select>
      </el-form-item>
    </el-form>
  </el-card>
</template>

<script lang="ts" setup>
import { useCategoryStore } from "@/stores/category";
import { watch } from "vue";
import { onMounted } from "vue";
defineOptions({
  name: "CategorySelector",
});
const categoryStore = useCategoryStore();

onMounted(() => {
  categoryStore.getCategory1List();
});

// 监听一级数据id，有则发请求，得到二级数据
watch(
  () => categoryStore.category1Id,
  () => categoryStore.getCategory2List()
);

// 监听二级数据id，有则发请求，得到三级数据
watch(
  () => categoryStore.category2Id,
  (category2Id) => {
    if (!category2Id) return;
    categoryStore.getCategory3List();
  }
);
// 控制三级列表的禁用
defineProps<{
  disabled: boolean;
}>();
</script>

<style scoped lang="scss">
.el-form-item {
  margin-top: 10px;
  margin-bottom: 10px;
}
</style>
